Age affects our nutritional needs. Sometimes the differences are obvious. It is easy to see the difference in the amount and types of food an infant, school-age child, teenager, and adult need. Other differences are more subtle. You may not realize that, as you get older, your calorie needs decrease, especially if you become less active. Being aware of such...
In addition to the addictive drug nicotine, the other principal harmful substances in cigarettes are tar and carbon monoxide. Tar is a sticky, brown residue that collects in the lungs. Primarily made up of chemicals known as hydrocarbons, tar is a powerful cancer-causing agent that has been linked to the development of lung cancer. Carbon monoxide is...
Professional and amateur athletes sometimes use supplements or drugs to improve their
physical performance. Anabolic steroids are probably the most well-known performance-enhancing drugs, and the most dangerous. These synthetic drugs imitate the effects of the male hormone testosterone. The drugs have approved medical uses, but athletes use them to make their muscles bulkier and stronger.
There are different types of exercise, and each type has different effects on your body. Some types of exercise improve flexibility and muscle strength. Others use the large muscles in your body to build heart strength. Still others increase endurance. Exercises fall into three categories—aerobic, strength conditioning, and flexibility. Which type is best...
Wanting to cover those grey strands or simply want to change your hair color for a different look? Think again. Studies about hair color treatments reveal that 5% of frequent hair dye users are bound to have sensitive scalp or develop allergies in the long run. However, those who already have sensitive skin will see and feel negative effects as soon as harsh chemicals in hair color touch their scalp. These effects are redness, burning sensation, dryness and itch, and usually caused by the following ingredients: 1. Harsh Chemicals in Hair Dye A...
